What a Perfect Gravitational Lens
A stunning new photograph from the Hubble Space Telescope shows a nearly perfect Einstein Ring, an effect caused by gravitational lensing. This is one of the most complete Einstein Rings ever seen. Continue reading “What a Perfect Gravitational Lens” Διαβάστε περισσότερα: https://www.universetoday.com/152362/what-a-perfect-gravitational-lens/
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